At some point in your engagement with architectural or real estate projects, you may have encountered the terms “storefront” and “curtain wall.” These terms often crop up when discussing the exterior walls of a building, specifically the glass elements that adorn its facade. But what exactly do these terms mean, and how do they differ? Watchdog is here to provide a concise explanation of the differences between storefront systems and curtain walls.
Storefront:
A storefront is defined as a non-residential, non-load-bearing assembly comprising commercial entrance systems and windows. It typically spans the distance between the floor and the structure above, emphasizing durability for high use. Storefronts are commonly designed for applications where the span height is 10 feet or less. While predominantly utilized on the ground floor, storefronts can extend to the second or third floor. The construction of storefronts is characterized by center glazing, and they lack a self-draining system.
Curtain Wall:
In its fundamental sense, a curtain wall represents any non-load-bearing exterior wall that hangs, akin to a curtain, from the floor slabs. These walls can reach heights of 25 feet or more, depending on the building’s design. Unlike storefronts, curtain walls span multiple floors, providing a seamless aesthetic. Curtain walls are typically front-glazed and incorporate a self-draining system to manage water accumulation.
Key Differences:
Height:
- Storefront: Primarily used for frames up to 10 feet in height.
- Curtain Wall: Taller structures, suitable for frames 13 feet or higher.
Thickness:
- Storefront: Typically 2 inches deep or less.
- Curtain Wall: More substantial, starting at 2.5 inches in depth and potentially reaching up to 8 inches.
Application:
- Storefront: Commonly relegated to the ground floor but may extend to the second or third floor.
- Curtain Wall: Designed to span multiple floors, offering a seamless aesthetic across the building.
Understanding these distinctions is important for architects, project managers, and anyone involved in real estate ventures. The choice between storefront systems and curtain walls not only impacts the visual appeal of a structure but also its functionality and suitability for specific applications.
